Erase All Keys and Program Two Keys

Erase All Keys and Program Two Keys

General Procedure

NOTE: This procedure erases all programmed ignition keys from the vehicle memory. The vehicle cannot start until a minimum of 2 keys are programmed into the BCM (Body Control Module).

NOTE: Two PATS (Passive Anti-Theft System) keys with the correct mechanical cut must be available to carry out this procedure.

NOTE: This procedure erases all MyKey(R) features on all of the keys that are programmed to the vehicle. All of the keys then operate as normal (admin) keys with no restrictions.

1. Turn the key from the OFF position to the ON position.

2. From the scan tool, enter TOOLBOX. Select Body>Security>PATS Functions and follow the IDS (Integrated Diagnostic System) on-screen instructions to enter PATS (Passive Anti-Theft System) security access.

3. From the scan tool menu select "Ignition Key Code Erase" and follow the IDS (Integrated Diagnostic System) on-screen instructions until the key erase procedure completes. The scan tool then instructs you to program 2 keys to complete the process.

4. Turn the key to the OFF position and disconnect the scan tool (the key does not need to be removed from the ignition at this time).

5. NOTE: The doors lock and then unlock to confirm that each IKT (Integrated Keyhead Transmitter) is programmed.
Turn the first PATS (Passive Anti-Theft System) key to the RUN position for a minimum of 6 seconds.

6. Turn the first PATS (Passive Anti-Theft System) key to the OFF position and remove the key from the ignition.

7. Insert the second PATS (Passive Anti-Theft System) key into the ignition and turn the key to the RUN position for a minimum of 6 seconds.

8. The engine should now start with both PATS (Passive Anti-Theft System) keys.

9. If it is desired to program additional keys, REFER to Key Programming Using Two Programmed Keys Key Programming Using Two Programmed Keys for each additional key that needs to be programmed.

1. A total of 8 PATS (Passive Anti-Theft System) keys can be programmed into the BCM (Body Control Module). Of those 8 keys, a maximum of 4 IKTs (Integrated Keyhead Transmitters) can be programmed.